Good message from bonetrauma2. I remember getting an email from a few places saying that they had received 600+ applications for 4-6 spots and that it would take more time to get interviews out. These were from places outside my home and med school region where I didn't do an away... so I figured none of those interviews would be for me, and was right.
Programs can't interview everyone, and they don't want spots to go unmatched. I really wonder how many places interview for than a few applicants who aren't:
1) from the area where the program is (West Coast, Midwest, Southeast, New England, etc)
2) from a med school in the area where the program is
3) did an away at the program or at least a program in the geographical area
4) can convey in an application letter their deep love and ties to the area where the program is
So if you apply to 100 programs but only 20 fit category 1-4, your real denominator might be closer to 20-25... almost regardless of board score/AOA/research/whatever. Programs want applicants that want to be at the program, and I strongly suspect a marker for this is geography.